Drones that Harvest Energy and Live in the Wild

I love this concept, that Drones can harvest energy from power lines and effectively live in the wild. We’ve seen basic BEAM (Biology, Electronics, Aesthetics, and Mechanics) robots harvest solar energy, but this adds another dimension. One day if we ever develop artificial intelligence, you can imagine robots like this living in the wild and savaging energy from a wherever they can. Will we one day see robots hanging off power lines? Maybe…